Carton opener



flange.

' preferably Patented Mar. 19, 1929.

UNITED STATES HENRY S. SPRINGER, OF CAMDEN, NEW JERSEY.

CARTON OPENER.

Application mea umn 21, 192s. serial no. 263,320.

This invention relates to an opening de-k vice or cutter especiallyadapted for opening cartons such as the cardboard and corrugated cartonsin which various commodities are packed for shipment.

The object of the inventionl is to provide an efficient tool of thischaracter which is economical to manufacture and in which a safety razorblade may be used as the cutting element.

The invention comprises a guide member having a flange thereon extendingat r1ght angles to the guide member and clamping means associated withsaid flange whereby a blade or'cutter may be held against'the Thisflange and clamping means may be adapted to hold various types of safetyrazor blades therebetween 1n such a manner as to utilize suchblades asthe cutting member in the envelope opener.

In the drawings,

Figure 1 is a perspective View ofaI carton opener made in accordancew1th my invention, and y Figure 2 isa perspective View of the parts ofthe device shown in Figure 1, the main members being partly broken awaym order toshow the fastening means.

The opener consists of a mam member 5 and a clamping member 6 having acutter 7 clamped between them by bolts 8. Mem bers 5 and 6 may be madeof metaland bolts 8 threaded into one of the members but, as a lightweight tool is. desirable, they are made of wood or fibre and the boltsthreaded into nuts 9 embedded in member 6.

Different types of cutters mayV be used but I have shown the openerequipped with a single edged razor blade having one side of itsthickened back 10 disposed'm a groove 11, formed in the edge of member6, and the other side of its back disposed 1n a groove 12 in the edge ofa flange 13 formed along one side of member 5. Grooves 11l and 12preferably extend acrossthe edges of member 6 and flange 13 at an angleof approXimately 45 as it is found that cutters vare most effective whenset at this angle. Cutter 7 may be moved along the grooves to regulatethe depth of cut to be made and is rigidly secured in adjusted positionbyY tightening bolts 8. I

Preferably, a pair of dowels 14, inserted in one of the members, extendinto recesses 15 formed in the other member so that a double edged razorblade may be used in lleu of the single edged blade by inserting thedowels through the holes formed in such blades and tightening bolts 8 toclamp the blade between members 5 and 6.

In opening a carton, the end 16 of meI`n` The apparatus illustrated maybe modified or changed in 'various ways without departing" from the sirit of the invention herein set forth and ereafter claimed.

I claim 1. A carton opener including a main member having a flangeextending therefrom, said flange having an extended flat face, a

clamping member having a flat face adapted to cooperate vwith the flatface of the flange and separably connected thereto, .a y

cutter clamped between said flange and 4clamping member and means tohold the clamping member against the face of the flange, said bladeextending `beyond the -flange at an angle thereto.

2. A carton opener including a main mem- `ber having a flange extendingat substantially right angles thereto, a clamping member, a cutterclamped etween said flange members'and clamping ember in parallelismwithv the main member and means on said clamping member for holding thecutter against displacement, said cutter being ladjustable relative tothe flange and extending therebeyond at an angle thereto. 3. A cartonopener` including a main member, Va flange on the main member having adiagonal groove, a clamping member having a diagonal groove registeringwith the groovein the flange, a cutter having a thicklened edge disposedin the grooves, and lmeans for clamping the cutter between said members.

In testimony whereof I have signed my name to this specification'.

HENRY s. SPRINGER.

